New answers tagged sample-and-hold
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Sample/Hold Capacitor Not Holding As Expected
I redrew your schematic to help show the intrinsic diode, but that does not appear to be your only issue. Without more of the schematic, and a properly drawn one showing power and ground references, ...
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Sample/Hold Capacitor Not Holding As Expected
I suggest a couple of fixes:
The body connection must go to the negative-most potential. In case the body voltage goes above the Source or Drain by one diode turn-on voltage, the MOSFET operation ...
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